BULLOUS VARIETY OF INCONTINENTIA PIGMENTI (BLOCH-SULZBERGER)

To the Editor. —In their excellent paper entitled ``Bullous Variety of Incontinentia Pigmenti (Bloch-Sulzberger)'' (A. M. A.Arch. Dermat. & Syph. 65 :557-567 [May] 1952), Epstein, Vedder, and Pinkus state that they saw no signs of follicular atrophoderma upon examination of their patient at the age of 16 months. The authors, however, noted agenesis of the skin appendages in the histologic pictures of specimens taken at the ages of 19 days and one year. Agenesis of skin appendages was noted in the histologic pictures of follicular atrophoderma of two girls observed by me (Curth, H. O.: Follicular Atrophoderma and Pseudopelade Associated with Chondrodystrophia Calcificans Congenita, J. Invest. Dermat. 13 :233-247 [Nov.] 1949) at the ages of 8 and 9 years, respectively. In the 9-year-old child and her 4-year-old sister incontinentia pigmenti was also present. I saw my patients with incontinentia pigmenti and their 37-year-old mother for the first time at